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authorStefan Roese <sr@denx.de>2010-04-27 22:13:34 (GMT)
committerJosh Boyer <jwboyer@linux.vnet.ibm.com>2010-05-05 16:51:54 (GMT)
commita32fe93daf9c6b6ffbab1d9b9e2a8e4c335bda5c (patch)
tree66a68d8817ba3c86f1f38ee2cd1b5f92a9d56076 /Documentation/powerpc
parent101c192e1163c1c7e8d29748108b582929975038 (diff)
powerpc/4xx: Add optional "reset_type" property to control reboot via dts
By setting "reset_type" to one of the following values, the default software reset mechanism may be overidden. Here the possible values of "reset_type": 1 - PPC4xx core reset 2 - PPC4xx chip reset 3 - PPC4xx system reset (default) This will be used by a new PPC440SPe board port, which needs a "chip reset" instead of the default "system reset" to be asserted. Signed-off-by: Stefan Roese <sr@denx.de> Cc: Josh Boyer <jwboyer@linux.vnet.ibm.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Josh Boyer <jwboyer@linux.vnet.ibm.com> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Diffstat (limited to 'Documentation/powerpc')
-rw-r--r--Documentation/powerpc/dts-bindings/4xx/reboot.txt18
1 files changed, 18 insertions, 0 deletions
diff --git a/Documentation/powerpc/dts-bindings/4xx/reboot.txt b/Documentation/powerpc/dts-bindings/4xx/reboot.txt
new file mode 100644
index 0000000..d721726
--- /dev/null
+++ b/Documentation/powerpc/dts-bindings/4xx/reboot.txt
@@ -0,0 +1,18 @@
+Reboot property to control system reboot on PPC4xx systems:
+
+By setting "reset_type" to one of the following values, the default
+software reset mechanism may be overidden. Here the possible values of
+"reset_type":
+
+ 1 - PPC4xx core reset
+ 2 - PPC4xx chip reset
+ 3 - PPC4xx system reset (default)
+
+Example:
+
+ cpu@0 {
+ device_type = "cpu";
+ model = "PowerPC,440SPe";
+ ...
+ reset-type = <2>; /* Use chip-reset */
+ };

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